... graphite roller 石墨辊 graphite scrap 石墨碎片 graphite sealing ring 石墨密封环 ...
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artificial graphite scrap 人造石墨碎块
scrap artificial graphite 废人造石墨
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Carmack was forced to scrap the return trip, required to collect the prize, after a graphite engine nozzle disintegrated.
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